Home / 288,100.40-397,598.64-160,778.16

Finding the Fourth Proportional to 288,100.40, 397,598.64 and 160,778.16

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Solution

The fourth proportional to 288,100.40, 397,598.64 and 160,778.16 is: 221,885.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,100.40 : 397,598.64 = 160,778.16 : x
  2. Step 2: Convert to fraction form
    288,100.40/397,598.64 = 160,778.16/x
  3. Step 3: Cross multiply
    288,100.40x = 397,598.64 × 160,778.16
  4. Step 4: Simplify right side
    288,100.40x = 63,925,177,757.70
  5. Step 5: Solve for x
    x = 63,925,177,757.70/288,100.40
  6. Step 6: Final answer
    x = 221,885.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.